| Presentation | 2015-09-08 Fast Statistical Image Reconstruction Method Using Filtered-Backprojection-Type Preconditioning Fukashi Yamazaki, Takuya Nemoto, Keita Takaki, Hiroyuki Kudo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Statistical image reconstruction can take the statistical nature of the noise in to account. However, it requires enormous computational cost, because the iterative computation is necessary and its convergence is slow. Therefore, faster convergent methods have become important recently. For example, preconditioning technique is one of them. Since the conventional preconditioning methods perform convolution using high-pass filters on the image space, its computational cost per iteration is significantly increased. In this paper, we propose a new method using filtered-backprojection-type preconditioning, based on the duality of nonlinear programming problem. This method perform the preconditioning projection space, accordingly, the computational cost is lower compared with the conventional image space preconditioned methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Image reconstruction / Filtered-backprojection / Preconditioning |
| Paper # | MI2015-48 |
| Date of Issue | 2015-09-01 (MI) |
| Conference Information | |
| Committee | MI |
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| Conference Date | 2015/9/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Electro-communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Machine learning and its application to medical image processing |
| Chair | Yoshitaka Masutani(Hiroshima City Univ.) |
| Vice Chair | Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) |
| Secretary | Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.) |
| Assistant | Ryo Haraguchi(NCVC) / Yasushi Hirano(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Medical Imaging |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fast Statistical Image Reconstruction Method Using Filtered-Backprojection-Type Preconditioning |
| Sub Title (in English) | |
| Keyword(1) | Image reconstruction |
| Keyword(2) | Filtered-backprojection |
| Keyword(3) | Preconditioning |
| 1st Author's Name | Fukashi Yamazaki |
| 1st Author's Affiliation | University of Tsukuba(Univ. of Tsukuba) |
| 2nd Author's Name | Takuya Nemoto |
| 2nd Author's Affiliation | University of Tsukuba(Univ. of Tsukuba) |
| 3rd Author's Name | Keita Takaki |
| 3rd Author's Affiliation | University of Tsukuba(Univ. of Tsukuba) |
| 4th Author's Name | Hiroyuki Kudo |
| 4th Author's Affiliation | University of Tsukuba(Univ. of Tsukuba) |
| Date | 2015-09-08 |
| Paper # | MI2015-48 |
| Volume (vol) | vol.115 |
| Number (no) | MI-218 |
| Page | pp.pp.1-6(MI), |
| #Pages | 6 |
| Date of Issue | 2015-09-01 (MI) |